There is a well-known principle that when a police officer executes a search warrant in good faith without knowing it is defective, the items found in the search are not suppressed. If the courts are to encourage officers to know the law, the same good faith exception should not apply to the items, i.e. drugs or a blood alcohol level above the legal limit, found in an improper traffic search, right? The ignorance of officers should not be enabled. Click on the following link to read more about this issue.